Flexible photovoltaic support construction method based on three parallel cables and flexible photovoltaic support

Abstract

The invention relates to a flexible photovoltaic support construction method based on three parallel cables and a flexible photovoltaic support. The construction method comprises the steps that end anchor supports which are oppositely arranged are installed on the ground; a middle foundation is installed in the space between the end anchor supports, and a middle support is installed on the middle foundation; three pre-stressed steel cables which are arranged in parallel sequentially penetrate through the middle support from the end anchor support at one end and are fixedly connected with the end anchor support at the other end, the sections of the three pre-stressed steel cables are triangular to form a load-bearing steel cable, and the inclined surface of the load-bearing steel cable is used for bearing a photovoltaic module; a plurality of supporting rod structures are hinged to the three prestressed steel cables; swing supports are installed on the supporting rod structures located on the same set of bearing steel cables at intervals. A wind-proof steel cable is arranged on the supporting rod structure without the swing support in a penetrating mode and perpendicular to the bearing steel cable, and the two ends of the wind-proof steel cable are fixed through end anchor supports respectively. The risks of deflection deformation and vibration of the support are reduced, and the situation that the power generation efficiency is affected by subfissure damage caused by overlarge deformation of the photovoltaic module is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a parallel three-cable-based flexible photovoltaic support construction method and a flexible photovoltaic support, and belongs to the technical field of photovoltaic supports. BACKGROUND

[0002] In recent years, the photovoltaic power generation industry has continued to expand, but the land resource constraint has become increasingly prominent - the construction of traditional photovoltaic power stations is highly dependent on flat and open land or standardized roofs, while a large number of special sites such as hilly mountains, deep water ponds, weak geological conditions of tidal flats, and large-span water treatment ponds in China have not been effectively developed and utilized due to the technical characteristics of traditional photovoltaic supports, leading to an increasingly prominent contradiction between photovoltaic resources and land use.

[0003] The current mainstream traditional photovoltaic support mostly adopts a concrete foundation combined with a steel or aluminum alloy rigid support structure, which has the following significant limitations: first, the span and clearance are limited, and second, the structure has a large self-weight, requiring strict geological conditions, resulting in high costs for photovoltaic power generation projects, which cannot promote the development of photovoltaic power generation in more fields and more scenarios. To break through the above technical bottlenecks, flexible photovoltaic support technology has emerged. Flexible photovoltaic support takes prestressed steel cable as the core load-bearing component, has the outstanding characteristics of "light self-weight, large span, high clearance, and long column spacing", and can realize the span of special sites in a more economical way, greatly reducing the site reconstruction and foundation engineering costs. At the same time, its advantages of "multiple application scenarios, high land utilization, and resource recycling" can effectively promote the integrated development of photovoltaic power generation and agriculture, fishery, water conservancy, and other industries, expanding the application boundary of photovoltaic power generation.

[0004] However, the existing flexible photovoltaic support technology still has room for improvement in terms of cable net arrangement, support stability, and wind resistance performance. For example, the application with publication number CN118449425 A explores the basic structure of flexible support, but still has problems in the stability of the load-bearing system, the load-bearing adaptability of photovoltaic modules, and the deflection control effect. In summary, the flexible support provided by some existing technologies adopts a double-cable parallel arrangement, which lacks sufficient flatness of the bearing surface, easily leading to a decrease in the installation precision of photovoltaic modules; some supports lack effective lateral wind resistance restraining structures, and are prone to cable net fluttering or module displacement under strong wind load. Therefore, developing a flexible photovoltaic support construction method to obtain a flexible photovoltaic support with stable structure, convenient construction, and stronger adaptability has important engineering practical significance for improving the engineering application reliability of flexible photovoltaic support and promoting the large-scale popularization of photovoltaic power generation in complex scenarios, and conforms to the strategic policy of China's clean energy and renewable energy development. SUMMARY

[0005] The application provides a flexible photovoltaic support construction method based on parallel three cables and a flexible photovoltaic support, which reduces the risk of support deflection deformation and vibration, and avoids hidden crack damage of photovoltaic modules due to excessive deformation to affect power generation efficiency.

[0006] The application solves the technical problems by adopting the technical solutions of: A flexible photovoltaic support construction method based on parallel three cables, specifically comprising the following steps: Step S1, installing opposite end anchor foundations on the ground, and installing end anchor supports on each end anchor foundation; Step S2, installing a middle foundation in the space between the end anchor supports, and installing a middle support on the middle foundation; Step S3, sequentially arranging three parallel prestressed steel cables from one end of the end anchor support, through the middle support and fixedly connected to the other end of the end anchor support, the cross section of the three prestressed steel cables is in a triangular shape, forming a bearing cable, and the inclined surface of the bearing cable is used for bearing photovoltaic modules; Step S4, hingedly connecting a plurality of strut structures on the three prestressed steel cables; Step S5, spacing and installing swing supports on the strut structures in the same group of bearing cables; Step S6, vertically arranging a windproof cable on the strut structure without swing support and passing through the bearing cable, and fixing the two ends of the windproof cable through the end anchor support; According to the construction method, the two end anchor supports are arranged oppositely, and the middle support is arranged on the straight line formed by the two end anchor supports; The two ends of the bearing cable are fixed on the end anchor support, and the bearing cable is simultaneously connected with the middle support in a sliding mode; A plurality of strut structures are hingedly connected on the bearing cable; The bearing cable comprises three prestressed steel cables, the three prestressed steel cables are arranged in parallel, and the cross sections of the three prestressed steel cables are in a triangular shape; the inclined surface of the bearing cable is used for bearing photovoltaic modules; Further, the end anchor support comprises two end columns with different heights, and the end columns are vertically installed on the end anchor foundation at the same time; The top ends of the two end columns are connected through an end inclined support; an end cross beam is fixed from the top end of the lower end column to the higher end column; On the side opposite to the end anchor support and the bearing cable, a rigid pull rod is fixedly arranged on the end column and the end cross beam in an inclined mode, and the bottom end of the rigid pull rod is fixed on the end anchor foundation; The top end of the lower end column, the top end of the higher end column, the end cross beam and the connecting point of the end cross beam and the higher end column are respectively the connecting points of the three prestressed steel cables and the end anchor support; Further, the end column, the end inclined support and the rigid pull rod are all made of seamless steel pipes, and the end cross beam is made of hot-rolled H-shaped steel. Further, the middle support is in sliding connection with the bearing cable; The middle support comprises two middle columns with different heights, and the middle columns are vertically installed on the middle foundation; The top ends of the two middle columns are connected by a middle diagonal brace, and a middle cross beam is fixed from the top end of the shorter middle column to the direction of the higher middle column; Three prestressed cables are respectively horizontally arranged at the top end of the shorter middle column, the top end of the higher middle column and the connection point of the middle cross beam and the higher middle column; Further, the middle columns and the middle diagonal brace are made of seamless steel pipes, and the middle cross beam is made of hot-rolled H-shaped steel; Further, the strut structure comprises three struts, and the three struts are sequentially connected to form a triangular structure, and the connection points of the end portions of adjacent struts are located on different prestressed cables; Further, the swing support comprises two swing columns, and the two end portions of the strut structure close to the ground are respectively connected to the top ends of the swing columns, the bottom ends of the two swing columns are fixed on the swing foundation at the same connection point, and the two swing columns are gathered to the same connection point on the swing foundation; Further, the strut is made of a seamless steel pipe, which is hinged with the prestressed cable and is clamped and fixed by a connecting piece; Further, the wind-resistant steel cable is a hot-dip galvanized steel wire.

[0007] Through the above technical scheme, compared with the prior art, the present application has the following beneficial effects: 1. The flexible photovoltaic support construction method based on parallel three cables provided by the present application is constructed from the need to match the deflection control requirement of the flexible photovoltaic support, and is designed in terms of material performance, arrangement mode and constraint mode, so that the photovoltaic support structure achieves the goal of reducing deflection deformation, thereby reducing the risk of hidden cracks of photovoltaic modules caused by excessive deformation; 2. The flexible photovoltaic support formed by the flexible photovoltaic support construction method based on parallel three cables provided by the present application, the strut structure as a rigid connecting piece of the bearing cable, by constraining the relative displacement of the bearing cable, enhances the overall stress stability of the photovoltaic support, so that the photovoltaic module achieves the best inclination, and indirectly realizes the control of deflection; 3. The flexible photovoltaic support provided by the present application limits the displacement of the end portion and the middle portion of the bearing cable, and serves as the fixing and supporting foundation of the bearing cable, thereby providing a constraint condition for deflection control and maintaining the prestress effect; 4. The flexible photovoltaic support provided by the present application further ensures the overall stability of the structure, and avoids additional vertical deflection caused by horizontal load; 5. The flexible photovoltaic support provided by the present application adopts three parallel distributed prestressed cables for the bearing cable, which is convenient for prestress construction and meets the requirement of higher photovoltaic module clearance. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of a parallel three-cable flexible photovoltaic support provided by the present invention; Figure 2 This is a partially enlarged schematic diagram of the end anchor bracket of a preferred embodiment of a parallel three-cable flexible photovoltaic support provided by the present invention; Figure 3 This is a partially enlarged schematic diagram of the central support of a preferred embodiment of a parallel three-cable flexible photovoltaic bracket provided by the present invention.

[0010] In the diagram: 11 is the end anchor bracket, 111 is the end column, 112 is the end diagonal brace, 113 is the end crossbeam, and 114 is the rigid tie rod. 12 is the central support, 121 is the central column, 122 is the central diagonal brace, and 123 is the central crossbeam. 13 is a rocker support. 2 is the load-bearing steel cable, 3 is the strut structure, and 4 is the wind-resistant steel cable. Detailed Implementation

[0011] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of this application, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the scope of protection of the present invention.

[0012] Existing photovoltaic (PV) support systems have several conflicting problems, such as terrain adaptability versus PV structural stability, safety versus construction efficiency. Therefore, to address these issues, this application provides a construction method for a flexible PV support system based on parallel three-cable structures. This method uses a parallel three-cable triangular load-bearing system combined with a modular support structure for standardized construction, offering significant advantages in terms of structural stability, terrain adaptability, construction efficiency, and service life.

[0013] Regarding the construction method, the construction will proceed in the order of foundation-support-windproof steel cable, specifically including the following steps: Step S1: Install the relatively arranged end anchor foundations on the ground, and install end anchor brackets 11 on each end anchor foundation; this step is the starting point of construction. The fixed end anchor brackets serve as the core of tensile strength and play a decisive role in the stability of the subsequent structure.

[0014] Step S2: In order to adapt to the large span requirements, transition supports need to be built between the end anchor supports. Therefore, this application installs a middle foundation in the space between the end anchor supports, and installs a middle support 12 on the middle foundation.

[0015] In step S3, three parallel prestressed steel cables are sequentially threaded through the middle support and fixedly connected to the end anchor bracket at the other end, starting from the end anchor bracket at one end. The three prestressed steel cables have triangular cross sections, forming the load-bearing steel cable 2. The inclined surface of the load-bearing steel cable is used to support the photovoltaic module.

[0016] The aforementioned central support divides the large span of the load-bearing cables into several smaller spans, preventing structural deformation due to excessively large spans of the load-bearing cables and improving load-bearing stability. Based on this, the load-bearing cables form a triangular load-bearing core, evenly distributing the self-weight of the photovoltaic modules and the load onto the three prestressed cables, avoiding localized stress concentration.

[0017] Step S4 involves hinged several strut structures 3 onto the three prestressed steel cables. The strut structures echo the triangular cross-sections of the load-bearing steel cables, further enhancing the deformation resistance of the local structure and preventing bending caused by excessive stress on a single strut. Since the inclined surface of the load-bearing steel cable directly supports the photovoltaic modules, the strut structures can simultaneously stabilize the inclined surface, eliminating the need for additional inclined supports and simplifying the structure while maintaining the stability of the load-bearing structure.

[0018] It is worth mentioning that the strut structure is hinged to the prestressed steel cable, using a non-rigid fixing method. When environmental changes cause the steel cable to expand and contract due to heat, the hinge point can rotate freely, which reduces the risk of deformation of the support structure and also reduces stress concentration inside the structure.

[0019] Step S5: The strut structure located on the same set of load-bearing steel cables is equipped with spaced-out sway supports 13. This spaced-out installation provides vertical support through the strut structure at key sway support positions while avoiding over-installation, thus balancing support effectiveness and economic cost.

[0020] The load-bearing steel cables and photovoltaic modules may vibrate violently in strong winds. To address the wind resistance shortcomings, in step S6, windproof steel cables are threaded perpendicularly through the load-bearing steel cables onto the strut structure without sway supports. Both ends of the windproof steel cables are fixed by end anchor brackets. Selecting the strut structure without sway supports as the threading point for the windproof steel cables makes full use of existing structural nodes, eliminating the need for additional support components. This simplifies the construction process and precisely addresses the wind resistance shortcomings.

[0021] Through the interconnected construction methods described above, steps S1 and S2 construct a stable support system, step S3 constructs a triangular load-bearing structure, and steps S4 to S5 further implement risk mitigation and adaptation, ultimately achieving the goal of minimizing the deflection and vibration risks of the formed flexible photovoltaic support.

[0022] The following is a detailed analysis of the formed flexible photovoltaic support structure. First, there are the end anchor supports and the central support. Two end anchor supports are arranged opposite each other, and the central support is set on the straight line formed by the two end anchor supports. The two ends of the load-bearing steel cable are fixed to the end anchor supports, and the load-bearing steel cable is simultaneously slidably connected to the central support. Several strut structures are hinged to the load-bearing steel cable. The load-bearing steel cable includes three prestressed steel cables, which are arranged in parallel, and their cross-sections are triangular. The parallel arrangement of the steel cables facilitates prestressing construction and can meet higher clearance requirements under the modules.

[0023] As the core component directly supporting photovoltaic modules, the load-bearing steel cable consists of three prestressed steel cables with triangular cross-sections. By fully utilizing the geometrically invariable property of triangles, it significantly improves resistance to torsion and lateral displacement, avoiding torsional instability under load in a single cable and uneven stress caused by lateral displacement of two cables, thus providing fundamental geometric stiffness for deflection control. Furthermore, the direct selection of prestressed steel cables not only ensures high strength and stable elastic modulus but also allows for the application of prestress to the structure in advance to offset some of the load deformation, reducing elongation under load and directly lowering vertical deflection.

[0024] The photovoltaic modules are installed on the inclined surface of the load-bearing steel cables. This inclination angle matches the optimal installation angle of the photovoltaic modules, eliminating the need for additional angle adjustment components. It also ensures that the load is evenly distributed to the three prestressed steel cables, avoiding large local deflections caused by overload of a single cable.

[0025] The end anchor bracket and the middle support fix and constrain the load-bearing steel cables. The end anchor bracket includes two end columns 111 of different heights, which are simultaneously and vertically installed on the end anchor foundation. The tops of the two end columns are connected by end diagonal braces 112. An end beam 113 is fixed from the top of the shorter end column towards the taller end column. On the side of the end anchor bracket opposite to the load-bearing steel cables, a rigid tie rod 114 is obliquely fixed to both the end column and the end beam, with the bottom end of the rigid tie rod fixed to the end anchor foundation. The tops of the shorter end column, the taller end column, and the connection points between the end beam and the taller end column are the connection points of the three prestressed steel cables to the end anchor bracket. The tops of the end columns and the nodes of the end beam precisely match the three connection points of the load-bearing steel cables. The end diagonal braces and rigid braces balance the tension of the prestressed steel cables. The end columns, end diagonal braces, and rigid tie rods are all made of seamless steel pipes, and the end beam is made of hot-rolled H-beams. The high rigidity of the materials provides a stable support for the load-bearing steel cables.

[0026] The central support includes two central columns 121 of different heights, both vertically installed on the central foundation. The tops of the two central columns are connected by a central diagonal brace 122. A central crossbeam 123 is fixed from the top of the shorter central column towards the taller central column. Three prestressed steel cables are horizontally threaded through the tops of the shorter and taller central columns, and at the connection point between the central crossbeam and the taller central column. Similarly, the central columns and diagonal braces are made of seamless steel pipes, and the central crossbeam is made of hot-rolled H-beams. The purpose of the central support is to reduce deflection by segmenting the span. Preferably, the central support is added in the middle of the two end anchor supports, dividing the total span of the load-bearing steel cable into two segments, thereby reducing deflection. Of course, the load-bearing steel cable and the central support are slidably connected, allowing adjustment of the position of the central support relative to the load-bearing steel cable, and permitting deformation of the steel cable that may occur due to external factors.

[0027] The strut structure provided in this application primarily serves as a load-transfer component. The strut structure comprises three struts connected sequentially to form a triangular structure, with the connection points at the ends of adjacent struts located on different prestressed steel cables. The triangular shape of the strut structure precisely matches the triangular cross-section of the load-bearing steel cable, evenly distributing the localized concentrated load of the photovoltaic module onto different prestressed steel cables, avoiding large local deflections caused by overload tension of a single cable. The struts are made of seamless steel pipes, hinged to the prestressed steel cables, and clamped and fixed using connectors. Seamless steel pipes have high buckling and shear strength; the hinge allows for slight rotation of the prestressed steel cable under load; and the clamping and fixing with connectors ensures no relative slippage between the struts and the prestressed steel cables, further ensuring efficient load transfer and preventing uneven deflection caused by slippage. Regarding connectors, many options are available on the market; any one type can be selected.

[0028] When photovoltaic (PV) mounting systems are in actual use, lateral displacement due to wind loads is common. Therefore, several sway supports are also included. Each sway support consists of two sway columns with spaced strut structures. The two ends of the struts closest to the ground are connected to the tops of the sway columns. The bottom ends of both sway columns are simultaneously fixed to the sway foundation and converge at the same connection point on the sway foundation. The design of the sway supports simultaneously restricts the lateral displacement of the load-bearing cables and the strut structures, thereby enhancing lateral stiffness. The bottom ends of the sway columns converge at the same connection point on the sway foundation, forming a lateral triangular support system that resists lateral displacement while avoiding stress hazards caused by rigid constraints.

[0029] Throughout the support area, sway supports cover most of the location. To supplement lateral deflection control, the parallel three-cable flexible photovoltaic support provided in this application also includes several wind-resistant steel cables 4. These wind-resistant steel cables are arranged vertically to the load-bearing steel cables, and each wind-resistant steel cable passes through a strut structure without sway supports. Both ends of the wind-resistant steel cables are fixed by end anchor brackets. This distributes the lateral load across multiple struts and end anchor brackets, avoiding large lateral deflections of the prestressed steel cables caused by localized load concentration. Preferably, the wind-resistant steel cables are hot-dip galvanized steel strands. During long-term use, the cross-section of the hot-dip galvanized steel strands shows no rust or loss, continuously providing lateral constraint stiffness and extending the service life of the entire structure.

[0030] Figure 1 This application provides a specific preferred embodiment in which multiple sets of end anchor brackets fix multiple sets of load-bearing steel cables. The swaying supports and wind-resistant steel cables are distributed alternately. During actual installation, the designed prestress is applied to three prestressed steel cables. The triangular cross-section of the load-bearing steel cables is designed to form an optimal spatial force-bearing system, with the three prestressed steel cables arranged in a right-angled triangular structure. Matching, such as... Figure 2 and Figure 3 As shown, in the end anchor bracket, the end crossbeam is vertically fixed from the top of the shorter end column to the direction of the taller end column, and in the middle support, the middle crossbeam is vertically fixed from the top of the shorter middle column to the direction of the taller middle column.

[0031] In summary, the flexible photovoltaic support based on parallel three cables constructed using the construction method provided in this application achieves active deformation offsetting through prestress control, passive deflection reduction through span segmentation, and stiffness enhancement through geometric triangular structural design. At the same time, it provides full-area coverage constraint to limit lateral displacement, ultimately ensuring that the structure's deflection meets the installation accuracy and long-term operational safety requirements of the photovoltaic modules under various working conditions.

[0032] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0033] The meaning of "and / or" as used in this application includes situations where each exists alone or both exist simultaneously.

[0034] The term "connection" as used in this application can mean a direct connection between components or an indirect connection between components through other components.

[0035] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A construction method for a flexible photovoltaic support system based on parallel three cables, characterized in that: Specifically, the following steps are included: Step S1: Install the relatively arranged end anchor foundations on the ground, and install the end anchor bracket on each end anchor foundation; Step S2: Install the middle foundation in the space between the end anchor brackets, and install the middle support on the middle foundation; Step S3: Three parallel prestressed steel cables are sequentially passed through the middle support and fixedly connected to the end anchor bracket at the other end, starting from the end anchor bracket at one end. The three prestressed steel cables have triangular cross sections, forming load-bearing steel cables. The inclined surface of the load-bearing steel cables is used to support the photovoltaic modules. Step S4: Hinge several strut structures onto the three prestressed steel cables; Step S5: The strut structure located on the same set of load-bearing steel cables is equipped with sway supports at intervals; Step S6: A windproof steel cable is threaded perpendicularly through the load-bearing steel cable on the strut structure without the sway support installed. The two ends of the windproof steel cable are fixed by end anchor brackets.

2. The flexible photovoltaic support formed by the construction method according to claim 1, characterized in that: Two end anchor brackets are arranged opposite each other, and a central support is set on the straight line formed by the two end anchor brackets; Both ends of the load-bearing steel cable are fixed to the end anchor brackets, and the load-bearing steel cable is simultaneously slidably connected to the middle support. A structure with several struts hinged to a load-bearing steel cable; The load-bearing steel cable includes three prestressed steel cables, which are arranged in parallel and have a triangular cross-section. The inclined surface of the load-bearing steel cable is used to support the photovoltaic module.

3. The flexible photovoltaic support according to claim 2, characterized in that: The end anchor support includes two end columns of different heights, which are simultaneously and vertically installed on the end anchor foundation. The tops of the two end columns are connected by end bracing; the end beam is fixed from the top of the shorter end column toward the taller end column. On the opposite side of the end anchor bracket and the load-bearing steel cable, a rigid tie rod is fixed at an angle on both the end column and the end beam, and the bottom end of the rigid tie rod is fixed to the end anchor foundation. The top of the shorter end column, the top of the taller end column, and the connection point between the end beam and the taller end column are the connection points of the three prestressed steel cables and the end anchor brackets, respectively.

4. The flexible photovoltaic support according to claim 2, characterized in that: The end columns, end braces, and rigid tie rods are all made of seamless steel pipes, and the end beams are made of hot-rolled H-beams.

5. The flexible photovoltaic support according to claim 2, characterized in that: The central support is slidably connected to the load-bearing steel cable; The central support includes two central columns of different heights, both of which are vertically installed on the central foundation; The tops of the two central columns are connected by a central diagonal brace; the central crossbeam is fixed from the top of the shorter central column toward the taller central column; Three prestressed steel cables are horizontally threaded through the top of the shorter central column, the top of the taller central column, and the connection point between the central beam and the taller central column.

6. The flexible photovoltaic support according to claim 5, characterized in that: The central column and diagonal brace are made of seamless steel pipe, and the central crossbeam is made of hot-rolled H-beam.

7. The flexible photovoltaic support according to claim 2, characterized in that: The strut structure includes three struts, which are connected sequentially to form a triangular structure, and the connection points of the ends of adjacent struts are all located on different prestressed steel cables.

8. The flexible photovoltaic support according to claim 7, characterized in that: The rocking support includes two rocking columns. The two ends of the strut structure near the ground are respectively connected to the top of the rocking column. The bottom ends of the two rocking columns are fixed to the rocking foundation and converge at the connection point of the rocking foundation.

9. The flexible photovoltaic support according to claim 7, characterized in that: The struts are made of seamless steel pipes, which are hinged to the prestressed steel cables and clamped and fixed by connectors.

10. The flexible photovoltaic support according to claim 2, characterized in that: The wind-resistant steel cable is a hot-dip galvanized steel strand.

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